Installing additional packages
	------------------------------

	Additional (optional) instrument packages are called
	eclipse-INS-X.Y.Z.tar.gz, where INS stands for one of
	the supported instruments. These must be untarred in the
	same directory as the eclipse main library to be compiled.

	Example: you want to install the eclipse-isaac package,
	you must unpack one directory above eclipse.

	% ls -l
	eclipse -> eclipse-5.0.0/
	eclipse-isaac-5.0.0.tar.gz

	% gunzip -c eclipse-isaac-5.0.0.tar.gz | tar xvf -
	[...]
	% cd eclipse
	% make

	This should do it.
	Notice that you can install as many optional packages
	as you want. Typing 'make' in the eclipse top directory
	will build all found packages.